Kowalska, Jolanta Elżbieta, Alicja Kostencka, and Maciej Wronkowski. 2019. “Aggressive Behaviour of Football Fans - an Attempt to Learn about the Phenomenon in the Context of Preventive Activities at School”. INSTED: Interdisciplinary Studies in Education & Society 22 (1(85):112-27. https://insted-tce.pl/ojs/index.php/tce/article/view/131.